Unity 控制摄像机跟随运动物体

把以下代码绑定到摄像机

using UnityEngine;using System.Collections;public class FollowTarget : MonoBehaviour {    public Transform playerTransform;  //把运动物体拖放到此处    private Vector3 offset;// Use this for initializationvoid Start () {      offset =  transform.position - playerTransform.position;  //计算初始物体与相机的偏移距离}// Update is called once per framevoid Update () {        transform.position =  playerTransform.position + offset;   //运动物体当前位置 加上 原始偏移}}